20421186270926 has 32 divisors (see below), whose sum is σ = 35496003280320. Its totient is φ = 8630400404736.

The previous prime is 20421186270887. The next prime is 20421186270931. The reversal of 20421186270926 is 62907268112402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21504941 + ... + 22434456.

It is an arithmetic number, because the mean of its divisors is an integer number (1109250102510).

Almost surely, 2^{20421186270926} is an apocalyptic number.

20421186270926 is a deficient number, since it is larger than the sum of its proper divisors (15074817009394).

20421186270926 is a wasteful number, since it uses less digits than its factorization.

20421186270926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43939868.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 20421186270926 in words is "twenty trillion, four hundred twenty-one billion, one hundred eighty-six million, two hundred seventy thousand, nine hundred twenty-six".